Ok, a I've been using is misguided or going way off track. <...>I just can't believe a board is designed with 56+ pins but only 3 to 5 are usable at a time because of power limitations, or documented as how to increase that limitation. Furthermore don't understand why this limitation is in place if each section is powered by its own power source for the loadshttps://www.dropbox.com/s/at49i33uhkjnv4z/GantryProject.png?dl=0.
You absolutely need to stop, take a deep breath, and take a few weeks to learn basic electronics.
I just can't believe a board is designed with 56+ pins but only 3 to 5 are usable at a time
Such a waste to use a microcontroller as a simple switching mech.
How do I connect whatever (you fill in the blanks) to an Arduino Mega 256 to control 3 separate independent circuits all powered by there own power source. Max values 18vdc (really 12) @ 750ma. If I find I need more (current) I'll break it into 2 circuits @ 750ma, it is still going to require the same amount of pin signals, and none of it to power the Arduino.
Speaking of tools, did you know you can say something like "Stupid" using a single word or express it never using the word itself but others to convey the thought... and some are very good at it like Politician's and Lawyers.https://www.dropbox.com/s/poqfpvjuix3cqak/basic.png?dl=0
A link to advertisements was not helpful, I think I stated I own several pieces in the family (shield, 8 relay Module...) and used their descriptions to make purchases. Problem is/was documentation not advertisements on them.
followed instructions that told and showed him what to do to accomplish his task. I'd like to do the same, problem is there are no instructions to follow.
To me, half the fun of this whole Arduino thing has been the messing around trying to figure things out. I don't have a destination in mind. If I did have a real need, I'd pay someone for a turnkey solution.